Quick-acting coupling



Dec. 3, 1929. A. L. WALLACE AQUICK ACTING GOUPLING Filed March 27. 1926 [lll i I l l f1/wanton www Patented Dec. 3, 1929 Unire stares PTENT @FENCE ARCHIBALD L. WALLACE, 0F BROOKLYN, NEW YORK, ASSIGNOR T0 METAL HOSE 8G TUBING C0. INC., OF BROOKLYN, NEW YORK, A. CORFOETIN 0l? YORK QUICK-ACTING COUPLING Application led March 27, 1926.-

Tliis invention relates to a quick acting` coupling, that is to a coupling by the use ot' which two sections of hose, pipe, or other conductor, may be readily connected and disconnected and in which the operation ot connecting and disconnecting may be quickly performed.

An object of the invention is to provide a coupling of this character in which the connection although quickly eil'ccted will be of high eiliciency.

A further object is to provide a couplingl of the character indicated which will be ot simple construction, cheap to manufacture and in Which the connection may be easily and eiiiciently effected by simple manual inanipulation ot the parts.

A further object is to provide a coupling in which the parts which are to be coupled are first brought into Coupled relation to each other and in Which a subsequent simple manual manipulation of a part thereof will etiect a tight and efficient seal between the coupled parts.

Other objects and aims of the invention, more or less specific than those referred to above, will be in part obvious and in part pointed out in the course ot the following description of the elements, combinations, arrangements ot parts and applications of principles constituting the invention; and the scope of protection contemplated will, be indicated in the appended claims.

In the acconqianyinn drawings which are to be taken as a part of this specification, and in which I have shown merely a preferred form ott embodiment ot the invention Fig. l is a side elevational view of a cou pling constructed in accordance with this invention and showing the same in association with a dotted line representation ot conductor parts which are to be connected together, and

Fig. 2 is a vertical central sectional view through the coupling seen in Fig. 1. .Referring to the drawing for describing in detail the structure therein illustrated the reference character L indicates what will for convenience be termed an upper member While the reference character G- indicates rests a sealing ,gasket Serial No. 97,828.

What will be termed the lower member, oi the coupling.

The upper meinl er L is intended to be fixed ly connected with one o t' the conductor parts, :is for instance the pipe or like 'part l., the connection being' etl'cctcd by n eens ot intercngi'agging threads as 2 provided upon the parts L and l.

The louer member G is intended to be tired ly connected with the other conductor element, as the hose nozzle 3, the connection be` ingr eiiccted by means ot interengaging threads as 4 provided upon the parts G and The threacs 2 and 3 upon the members or parte L and G may be either internal or eX ternal as may be required, but are here illustrated as being internal threads in both instances.

The upper member L is shaped to provide a pair ot oppositely disposed lugs 5 and 6 thereon and an annular sealing part 7 at its lower open end.

The .lower member G is formed with an annular shoulder 8 at its upper end upon which which is exposerv and arranged for engagement by the sealing portion 7 oi: the member L. The gasket is preferably normally retained in position by being),` received in an annular 2@groovel() provided Within the inem* ber G and slightly overhanoing the upper suriaceot the gasket, the overhanging portion, l1, incidently servingv as an annular guide to direct and retain the sealing portion 7 ot member L in proper relation to the gasket.

The member (i is shaped also to provide an outstanding.; downwardly facing annular shoulder 12 exterior-ly at its upper end.

Loosely arranged about the member Gr, and adapted to engage the shoulder l2 is a collar i3, and connected With this collar is a second collar as lil which extends above the upper end of member G and is provided with a pair of bayonet slots ler-14 therein ar anged to receive the lugs 6.

The collars 13 and H are provided with cooperative threads as l5 by which said collars are adjustably connected together in such manner that relative rotation oit the collars will alter the distance between the upper end 9 the upper sui-tace of or shoulder portion 16 of collar 13 and the under side as 17 of the horizontal legs ot the bayonet slots 14, the threads being quite fine in order that this adjustment may be performed with the requisite accuracy.

A suitable stop as 18 is provided upon the collar H and a eo-operative stop 19 is provided upon the collar 13, said stops being adapted to abut together for vlimiting relative rotationv of the collars at all times, and in order that the limits provided by stops 18 and 19 may be altered, as for inst-ance to compensate for wear of the parts, one or the stops, as for instance the stop 19 on the collar 13, is rotatablyI adjust-able upon said collar 13. In the structure illustrated the collar 19 is formed upon a separate band 2O which `enc'ircles the collar 13 and which has opposite ends as 21 and 22 connected together by a clamp screw 23. 'Io adjust the stop 19 it is simply necessary to loosen the screw 23,

' rotate the bandtk 20 to the'desired extent and then again tighten the screw 23.

'j Each of the collars 13 and H are provided withannular hand grip portions as 24 and 25 respectively by whichr they may be manually i engaged'to eii'ect inter-rotation as required.

,between the shoulders 16 and 17.

quired inter-rotation ot' the. collars maybe quite slight, usually about a quarter turn,

When it is desired to utilize this coupling the operation is as follows Bearing in mmd that the upper member L of the coupling 1s rigidly connected with the conductor part 1 and the lower member G, carrying collars 13 and H, is rigidly connected to and .movable with the other conductor member as 3, the coupling members are brought roughly together, the lugs' and 6 passing into the bayonet slots 161, andthe sealing portion 7 engaging loosely with theg'asket Y9. At this time the collars 13 and H are'in position with the stops 18 and 19in engagement with each other, and hence with the shoulders 16 and 17 spaced their full distance apart so that the introduction of the lugs into the bayonet slots is a simpleA and easy operation. Withxthe two members of the coupling now roughly assembled the collars`13 and H are rotated relative to each other so as to separate the stops 18 and 19 thus causing the collars to screw'toward each other and hence reduce the distance The rewhen 'the' sealing portion 7 of theupper coupling member will be forced into tight sealing'engagement withV the gasket 9.

It will be understood that in the instance Y illustrated the band 20 will be. placed so thatthestop 19 thereof will Vallow just the proper amountv of inter-rotation between the two collars to permit Aof easy initial engagement Vof the two coupling membersL `and without 1 requiring excessive "inter-rotation of said collars inorder to vbringthe coupling members to their sealing position, and' that in 'the eventof wearofthe gasket, or` ot the shoulders 1G or 17, or of the parts which cngage said shoulders, the band 20 will be rotatably adjusted to place the stop 19 again in its most desirable position.

As many changes could be made in this construction without departing from the scope of the invention, as defined in the following claims, it is intended that all matter contained in the above description or shown in the accompanying drawings, shall be interpreted as illustrative only and not in a limiting sense.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1. Ina quick acting coupling, comprising two separate coupling members intended to be coupled together, a collar surrounding one or said coupling members having bayonet slot connection therewith, a part providing a shoulder upon said collar engaging the other coupling member in opposition to said bayonet slot connection, and means whereby said part is adjustable upon said collar to act upon the'bayonet slot connection for moving the two coupling members into tight engagement with each other, the combination therewith of stop means co-operative between said collarl and said part to limit relative movement of said part with respect to said collar, said stop means comprising a pair of abutments one carried by said collar and the other b v saidpart arranged to engage against each other andy means whereby one of said abutments is adjustable in a direction rotatively about the longitudinal axis of the coupling said means being operable to hold the adjustable abutment in any rotative adjusted position.

2. In a quick acting coupling, comprising two separate coupling members intended to be coupled together, acollar surrounding one of said coupling members having bayonet slot connection therewith, a part providing a shoulder upon said collar engaging the other coupling member in opposition to said bayonet slot connection, and means whereby said part is adjustable upon said collar to act upon the bayonet slot connection for moving the two coupling members into tight engagement with each other, the combination therewith of stop means cri-operative between said collar and said part to limit relative movement of said part with respect to said collar, said stop means comprising an abutment carried by said collar and a second abutment carried v byl said part, and one o1 said abutments consisting of a band encircling its carrying element and adjustably clamped thereonto for the purpose s et forth.

In testimony whereof I affix my signature.

ARCHIBALD L. VVLLACE. 

